摘要
The channel of deepwater under Niger delta slope is characterized by multi-stage,internal structure and shape variable,its location and sedimentary environment also hinder the research and exploration channel systems.According to strata slicing,RMS amplitude attribute and other techniques, the authors could exhibit the platforms patterns of channel at different period clearly.The results show that a great quantity of isolated channels develop in Middle Miocene and aggrading streams in late,generating because of large scale of turbidity caused by the drop of second order sea-level,which characterized by vertical accretion at smooth channel,while vertical accretion and lateral migration at bend.The research provides theoretical basis for high-precision prediction and evaluation of deepwater reservoir.